Revolution Medicines, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements

Organization

Revolution Medicines, Inc. (the Company) is a clinical-stage precision oncology company developing novel targeted therapies for RAS-addicted cancers. The Company was founded in October 2014 and is headquartered in Redwood City, California.

Liquidity

The Company has incurred net operating losses in each year since inception. As of June 30, 2025, the Company had an accumulated deficit of $2.2 billion. Management believes that its existing cash, cash equivalents and marketable securities will enable the Company to fund its planned operations for at least 12 months following the issuance date of these unaudited condensed consolidated financial statements.

Summary of significant accounting policies

Basis of presentation

The unaudited condensed consolidated financial statements have been prepared in conformity with generally accepted accounting principles in the United States (GAAP) and applicable rules of the Securities and Exchange Commission (SEC) regarding interim financial reporting and, in the opinion of management, include all normal and recurring adjustments which are necessary to state fairly the Company’s financial position and results of operations for the reported periods. The accompanying unaudited condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto for the year ended December 31, 2024 included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 filed with the SEC on February 26, 2025 (the 2024 Form 10-K). Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted in accordance with such rules and regulations. The unaudited condensed consolidated financial statements for the periods ended June 30, 2025 and June 30, 2024 include the accounts of the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The functional and reporting currency of the Company and its subsidiaries is the U.S. dollar.

Use of estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, management evaluates its estimates, including the fair value of assets acquired and liabilities assumed and related purchase price allocation, revenue recognition, clinical accruals, valuation of in-process research and development and developed technologies, income taxes, useful lives of property and equipment and intangible assets, impairment of goodwill and intangibles, impairment of in-process research and development and developed technologies, the incremental borrowing rate for determining operating lease assets and liabilities, warrant liabilities, stock-based compensation, the liability related to the sale of future royalties including the estimation of future payments and the related non-cash interest expense. Estimates are based on historical experience, complex judgments, facts and circumstances available at the time and various other assumptions that are believed to be reasonable under the circumstances but are inherently uncertain and unpredictable. Actual results could materially differ from the Company’s estimates, and there may be changes to the estimates in future periods.

Concentration of credit risk and other risks and uncertainties

Financial instruments that potentially subject the Company to concentration of credit risk consist of cash, cash equivalents and marketable securities. The Company maintains bank deposits in federally insured financial institutions and these deposits may exceed federally insured limits. The Company is exposed to credit risk in the event of a default by the financial institutions holding its bank deposits and issuers of its investments. The Company’s investment policy limits investments to money market funds, certain types of debt securities issued by the U.S. government and its agencies, certificates of deposit, corporate debt and commercial paper, and places restrictions on the credit ratings, maturities and concentration by type and issuer. The Company has not experienced any significant losses on its deposits of cash and cash equivalents or investments.

Liability related to the sale of future royalties

The Company accounts for the revenue participation right purchase and sale agreement with Royalty Pharma Investments 2019 ICAV (Royalty Pharma), pursuant to which Royalty Pharma purchased the right to receive tiered royalty payments with respect to worldwide net product sales of (i) the Company’s RAS(ON) multi-selective inhibitor, daraxonrasib (together with certain potential future products having the same mechanism of action as daraxonrasib, collectively, RMC-6236 Products) and (ii) the Company’s RAS(ON)

G12D-selective inhibitor, zoldonrasib (together with certain potential future products having the same mechanism of action as zoldonrasib, RMC-9805 Products), if an RMC-9805 Product is approved for the same indication or subset of the same indication for which an RMC-6236 Product is approved, as a debt financing under ASC Topic 470, Debt (“ASC 470”) to be amortized over the estimated life of the royalty term arrangement using the effective interest method. Non-cash interest expense is recognized in the consolidated statements of operations as a component of interest expense.

The liability related to the sale of future royalties and the related interest expense is based on the Company’s current estimates of future royalties. These estimates involve significant judgment and are based on a number of factors, including expected commercial launch timelines, regulatory approval probabilities, and projected net product sales over the term of the purchase and sale agreement. These assumptions are subject to change and are reassessed each reporting period. As none of our compounds have been commercialized, these estimates are highly subjective.

For additional information regarding the Royalty Purchase Agreement (including information regarding the trigger events related to particular tranches and the applicable tiered revenue payments), see “Note 8. Liability related to the sale of future royalties”.

Segment reporting

The Company determines its operating segments based on how the chief operating decision maker (CODM) views and analyzes the segment’s operations and performance and allocates resources. The President and Chief Executive Officer is the CODM. The CODM utilizes net loss as the measure of segment profit or loss. The Company hasone operating and reportable segment. The Company’s CODM manages the Company’s operations on a consolidated basis for the purposes of allocating resources and evaluating financial performance. The CODM assesses performance for and decides how to allocate resources based on the company’s cash and investment balance, periodic changes in cash and investments, and net loss, all of which are reported on the company’s consolidated balance sheets, statements of operations and/or statements of cash flows. The measure of segment assets is reported on the consolidated balance sheets as total consolidated assets. All of the Company’s long-lived assets are located in the United States.

In addition to the significant expense categories included within consolidated net loss presented on the Company’s condensed consolidated statements of operations, see below for disaggregated amounts that comprise research and development expenses:

(a) Third-party research and development expenses are comprised primarily of external costs incurred under agreements with third-party contract organizations, investigative clinical trial sites that conduct research and development activities on the Company’s behalf and consultants; costs related to the production of preclinical, clinical and pre-launch materials, including fees paid to contract manufacturers; and laboratory and vendor expenses related to the execution of discovery programs, preclinical and clinical trials.

Recent accounting pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board (FASB), under its ASC or other standard setting bodies, and adopted by the Company as of the specified effective date. No new pronouncements have been adopted by the Company for the three and six months ended June 30, 2025.

Recently announced accounting pronouncements

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740), Improvements to Income Tax Disclosures (ASU 2023-09). ASU 2023-09 relates to rate reconciliation and income taxes paid disclosures. The guidance is effective for public business entities for fiscal years beginning after December 15, 2024. Early application is permitted. The Company will be adopting the standard for the year ended December 31, 2025. The Company is currently evaluating the standard and does not expect it to have a material impact on the Company’s consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses (DISE). The new standard requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. The guidance is effective for public business entities for fiscal years (clarified as annual reporting periods by ASU 2025-01, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures Subtopic 220-40 issued in January 2025) beginning after December 15, 2026, and interim periods beginning after December 15, 2027. Early adoption is permitted. The guidance is to be applied prospectively, with the option for retrospective application. The Company is currently evaluating the impact of the standard on the Company’s consolidated financial statements.

Fair value measurements

The carrying amounts of certain of the Company’s financial instruments, including cash equivalents, marketable securities, accounts payable and accrued expenses and other current liabilities approximate fair value due to their relatively short maturities and market interest rates, if applicable. For more information, refer to “Note 4. Available-for-sale-securities” regarding the fair value of the Company’s available-for-sale securities.

Assets and liabilities recorded at fair value on a recurring basis in the consolidated balance sheets are categorized based upon the level of judgment associated with the inputs used to measure their fair values. Fair value is defined as the exchange price that would be received for an asset or an exit price that would be paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The authoritative guidance on fair value measurements establishes a three-tier fair value hierarchy for disclosure of fair value measurements as follows:

Level 1—Observable inputs such as unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date;

Level 2—Inputs (other than quoted prices included in Level 1) are either directly or indirectly observable for the asset or liability. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active; and

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

The following table presents information about the Company’s financial assets that are measured at fair value and indicates the fair value hierarchy of the valuation:

Money market funds are measured at fair value on a recurring basis using quoted prices. U.S. government debt securities, government agency bonds, certificates of deposit, commercial paper and corporate bonds are measured at fair value, which is derived from independent pricing sources based on quoted prices in active markets for similar securities.

There wereno transfers between Levels 1, 2 or 3 for any of the periods presented.

The fair value of the warrant liabilities was based on observable listed prices for such warrants. The fair value of the public warrants is categorized as Level 1. The fair value of the private warrants is categorized as Level 2 as they are equivalent to the public warrants as they have substantially the same terms; however, they are not actively traded.

Available-for-sale securities

The following tables summarize the amortized cost and estimated fair value of the Company’s available-for-sale marketable securities and cash equivalents and the gross unrealized gains and losses:

The amortized cost and estimated fair value of the Company’s available-for-sale securities by contractual maturity are summarized below as of June 30, 2025:

Balance sheet components

Property and equipment, net

Property and equipment, net consisted of the following:

Depreciation expense for property and equipment amounted to $1.7 million and $1.6 million for thethree months ended June 30, 2025 and 2024, respectively, and $3.3 million and $3.2 million for thesix months ended June 30, 2025 and 2024, respectively.

Accrued expenses and other current liabilities

Accrued expenses and other current liabilities consisted of the following:

Intangible assets and goodwill

Intangible assets, net

Intangible assets, net consisted of the following as of June 30, 2025:

Amortization expense for the three months ended June 30, 2025 and 2024 was $0.3 million and for the six months ended June 30, 2025 and 2024 was $0.5 million.

As of June 30, 2025, future amortization expense was as follows:

Intangible assets, net consisted of the following as of December 31, 2024:

Goodwill

The following summarizes the change in the carrying value of goodwill for thethree and six months ended June 30, 2025:

No impairment had been recognized as of June 30, 2025. Goodwill recorded is not deductible for income tax purposes.

Commitments and contingencies

Leases

In January 2015, as amended in September 2016, the Company entered into an operating lease for approximately 42,000 square feet of office, laboratory and research and development space located at 700 Saginaw Drive, Redwood City, California (the 700 Building). In April 2020, the Company amended the lease to lease an additional 19,000 square feet of office, laboratory and research and development space located at 300 Saginaw Drive, Redwood City, California (the 300 Building). In November 2021, the Company amended the lease to lease an additional 41,000 square feet of office, laboratory and research and development space located at 800 Saginaw Drive, Redwood City, California (the 800 Building). In March 2023, the Company amended the lease to lease an additional approximately 40,000 square feet of office, laboratory and research and development space located at 900 Saginaw Drive, Redwood City, California (the 900 Building), and to extend the lease term through December 31, 2035. The Company obtained possession of the 900 Building in October 2023. In July 2024, the Company amended the lease to lease an additional approximately 43,000 square feet of office, laboratory and research and development space located at 500 Saginaw Drive, Redwood City, California (the 500 Building). In November 2024, the Company amended the lease to lease an additional approximately 46,961 square feet of office, laboratory and research and development space located at 600 Saginaw Drive, Redwood City, California (the 600 Building). The Company has the option to extend the lease for the Buildings for an additionalten years after December 31, 2035. Additionally, in November 2024, the Company also entered into a sublease agreement pursuant to which approximately 23,481 square feet of office space located on the first floor of the 600 Building was subleased. The term of the sublease is through October 2027, with no options to extend. The sublease is accounted for as an operating lease.

The Company maintains letters of credit for the benefit of the landlord which are classified as restricted cash in the unaudited condensed consolidated balance sheets. Restricted cash related to letters of credit due to the landlord was $3.7 million as of June 30, 2025 and December 31, 2024.

Through June 30, 2025, the landlord had provided the Company with $16.3 million in tenant improvement allowances, which were recognized as lease incentives. The lease incentives are being amortized as an offset to rent expense over the lease term in the unaudited condensed consolidated statements of operations and comprehensive loss.

Upon the execution of the lease amendment in March 2023, which was deemed to be a lease modification, the Company re-evaluated the assumptions used during the lease amendment in November 2021. The Company determined the amendment consists of two separate contracts under ASC 842. One contract is related to a new right-of-use asset for the 900 Building, which is being accounted for as an operating lease, and the other is related to the modification of the lease term, as amended in November 2021, for the 700 Building, 300 Building and 800 Building. As a result, the Company recorded a right-of-use asset and a lease liability of $25.0 million for the 900 Building and an aggregate increase of $0.3 million to the right-of-use assets and lease liabilities for the 700 Building, 300 Building and 800 Building upon execution of the lease amendment. The Company is recognizing rent expense for the buildings on a straight-line basis through the remaining extended term of the lease.

Upon the execution of the lease in July 2024, the Company determined that the contract is related to a new right-of-use asset for the 500 Building, which is being accounted for as an operating lease under ASC 842. Upon obtaining possession of the building in October 2024, the Company recorded a right-of-use asset of $18.2 million, a lease liability of $21.8 million and a lease receivable of $3.6 million for the 500 Building. The Company is recognizing rent expense for the buildings on a straight-line basis through the term of the lease.

Upon the execution of the lease in November 2024, the Company determined that the contract is related to a new right-of-use asset for the 600 Building, which is being accounted for as an operating lease under ASC 842. The Company recorded a right-of-use asset and a lease liability of $26.3 million for the 600 Building. The Company is recognizing rent expense for the buildings on a straight-line basis through the remaining extended term of the lease.

The balance sheet classification of the Company’s operating lease liabilities was as follows:

The components of lease costs for thethree and six months ended June 30, 2025 and 2024 were as follows (in thousands):

(1) Net lease cost does not include short-term lease and variable lease costs, which were immaterial.

As of June 30, 2025, the maturities of the Company’s operating lease liabilities were as follows (in thousands):

Operating lease liabilities are based on the net present value of the remaining lease payments over the remaining lease term. In determining the present value of lease payments, the Company uses its incremental borrowing rate. The weighted-average discount rate used to determine the operating lease liability was 7.64%. As of June 30, 2025 and December 31, 2024, the weighted-average remaining lease term was 10.5 years and 11.0 years, respectively.

Legal matters

From time to time, the Company may be involved in litigation related to claims that arise in the ordinary course of its business activities. Defending such proceedings is costly and can impose a significant burden on management and employees. The results of any current or future litigation cannot be predicted with certainty, and regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources, and other factors. The Company accrues for these matters when it is probable that losses will be incurred and these losses can be reasonably estimated.

On December 9, 2024, Nemeth v. Casdin, et al., Case No. 2024-1268-KSJM (Del. Ch.), was filed in the Court of Chancery of the State of Delaware (the Complaint) arising from CM Life Sciences III., Inc.’s (CMLS III) December 17, 2021 merger with EQRx, Inc. (Legacy EQRx) (the Merger). The Complaint was filed by former stockholders of CMLS III and brings claims for breach of fiduciary duty and unjust enrichment against members of CMLS III’s board of directors, CMLS III’s officers, and CMLS III’s sponsor in connection with the Merger. The Complaint also brings claims for aiding and abetting breaches of fiduciary duties against certain investment firms involved with the merger process, the Company, solely as successor-in-interest to EQRx, and Legacy EQRx’s former Executive Chairman and CEO, Alexis Borisy, who is also on the Company’s board of directors. Defendants moved to dismiss the Complaint in February 2025. This motion is now fully briefed, and a hearing on the motion is currently scheduled in the fourth quarter of 2025.

At this juncture, the Company does not believe this action will have a material adverse impact on its operations or financial position. The Company is currently unable to predict the outcome of this lawsuit and therefore cannot determine the likelihood of loss, if any, nor estimate a range of possible loss.

Indemnification

The Company enters into standard indemnification arrangements in the ordinary course of business. Pursuant to these arrangements, the Company indemnifies, holds harmless and agrees to reimburse the indemnified parties for losses suffered or incurred by the indemnified party, in connection with any trade secret, copyright, patent or other intellectual property infringement claim by any third party with respect to its technology. The term of these indemnification agreements is generally perpetual any time after the execution of the agreement. The maximum potential amount of future payments the Company could be required to make under these arrangements is not determinable. The Company has not incurred costs to defend lawsuits or settle claims related to these indemnification agreements. As a result, the Company believes the fair value of these agreements is minimal.

Other

The Company enters into agreements in the ordinary course of business with contract research organizations for clinical trials, contract manufacturing organizations to provide clinical trial materials and with vendors for preclinical studies and other services and products for operating purposes, which are generally cancelable at any time by the Company upon 30 to 90 days’ prior written notice.

Liability related to the sale of future royalties

In June 2025, the Company entered into a revenue participation right purchase and sale agreement with Royalty Pharma Investments 2019 ICAV (the Royalty Purchase Agreement). Pursuant to the Royalty Purchase Agreement, Royalty Pharma purchased from the Company the right to receive tiered revenue payments with respect to worldwide net product sales of (i) RMC-6236 Products and (ii) RMC-9805 Products, if an RMC-9805 Product is approved for the same indication or subset of the same indication for which an RMC-6236 Product is approved (the Royalty Payments). In exchange for an upfront payment of $250.0 million, Royalty Pharma is entitled to receive Royalty Payments equal to 2.55% of annual worldwide net sales up to $2.0 billion,1.50% of annual net sales between $2.0 billion and $4.0 billion,0.60% of annual net sales between $4.0 billion and $8.0 billion, andno Royalty Payments on sales in excess of $8.0 billion.

The Royalty Purchase Agreement provides for up to an additional $1.0 billion of potential purchases of additional Royalty Payments if the following criteria are met: (i) an additional Royalty Payment from the Company in exchange for a payment from Royalty Pharma of $250.0 million, if, prior to January 1, 2028, there is a positive data readout from RASolute 302, the Company’s ongoing Phase 3 registrational trial in the second-line treatment of patients with metastatic pancreatic ductal adenocarcinoma (PDAC)showing that RMC-6236 meets an agreed-upon endpoint in a statistically significant manner and the earlier of (A) the Company’s determination to proceed with the preparation and submission of a New Drug Application to the U.S. Food and Drug Administration (FDA) on the basis of such readout or (B) the submission of a New Drug Application on the basis of such readout (Tranche 2) and (ii) in each case of the following, at the Company’s election, Royalty Pharma will purchase the rights to additional Royalty Payments in exchange for

(x) apayment of up to $250.0 million, if, prior to July 1, 2028, RMC-6236 receives FDA approval for the second-line treatment of patients with metastatic PDAC (Tranche 3), (y) a payment of up to $250.0 million, if the Company meets a specified net sales milestone prior to January 1, 2029 (Tranche 4), and (z) payments of (1) up to $100.0 million, if prior to January 1, 2030, there is a positive data readout from a potential Phase 3 clinical trial for the first-line treatment of metastatic PDAC involving either an RMC-6236 Product or an RMC-9805 Product, in each case, showing that the applicable Company compound meets an agreed-upon endpoint in a statistically significant manner and the FDA accepts a New Drug Application (or a supplemental application or an amendment to an existing application) on the basis of such readout, and (2) a payment of up to the difference of (I) $250.0 million and (II) the purchase price of any Royalty Payments purchased pursuant to clause (z)(1) above, if prior to January 1, 2030, there is a positive data readout from a potential Phase 3 clinical trial for the first-line treatment of metastatic PDAC involving either an RMC-6236 Product or an RMC-9805 Product, in each case, showing that the applicable Company compound meets an agreed-upon endpoint in a statistically significant manner and the earlier of (A) the Company’s determination to proceed with the preparation and submission of an application for marketing approval to the FDA, the European Medicines Agency (EMA) or the United Kingdom Medicines and Healthcare products Regulatory Agency (MHRA) on the basis of such readout or (B) the submission of an application for marketing approval to the FDA, EMA or MHRA on the basis of such readout (Tranche 5).

If Tranches 2 through 5 are all purchased in their entirety, Royalty Pharma would be entitled to receive total Royalty Payments equal to 7.80% of annual worldwide net sales up to $2.0 billion,4.55% of annual net sales between $2.0 billion and $4.0 billion,2.40% of annual net sales between $4.0 billion and $8.0 billion, andno Royalty Payments on sales in excess of $8.0 billion. If the Company elects not to draw the full amount of any of the optional tranches, the associated royalty rates would be lower for each of the net sales tiers.

Additionally, the Royalty Purchase Agreement provides for an upward adjustment to the Royalty Payment rates in the years from 2030 to 2041 in the event that annual net sales in the immediate prior year are below an agreed-upon threshold. The upward adjustment to the Royalty Payment rates applies only to the $0 to $2 billion annual net sales tier, and the adjusted total Royalty Payment rate for this tier remains in the single digits. Any upward adjustment will revert back to the original Royalty Payment rates in the event that Annual Net Sales are above a different agreed-upon threshold.

The Company’s obligations under the Royalty Purchase Agreement will terminate upon the fifteenth anniversary of the first commercial sale of an RMC-6236 Product in the United States (or in the European Union for ex-U.S. sales).

The Royalty Purchase Agreement contains customary representations, warranties and indemnities of the Company and Royalty Pharma, and customary covenants on the part of the Company.

The Company has accounted for the Royalty Purchase Agreement as a debt financing, primarily because it has significant continuing involvement in generating the future revenue on which the Royalty Payments are based. The financing liability associated with the Royalty Payments and the related interest expense are measured based on our current estimate of the timing and amount of expected future Royalty Payments expected to be paid over the estimated term of the Royalty Purchase Agreement. The liability is amortized using the effective interest rate method, resulting in recognition of interest expense over the estimated term of the Royalty Purchase Agreement.

The upfront $250.0 million received was recorded as a liability and measured at amortized cost. Debt issuance costs of $5.8 million were recorded as a direct deduction from the carrying amount of the liability and are amortized to interest expense using the effective interest method over the estimated term of the arrangement. The effective interest rate for the initial tranche was determined based on the Company’s projections of future Royalty Payments. The Company will evaluate the estimated timing and amount of future Royalty Payments for each reporting period and will revise the effective interest rate prospectively if those estimates change materially.

The carrying value of the liability related to the sale of future royalties approximates fair value as of June 30, 2025 and is classified as either current or noncurrent based on the estimated timing of future Royalty Payments. The Company’s projections of future Royalty Payments are subject to significant estimation uncertainty and are based on various assumptions, including expected commercial launch timelines, regulatory approval probabilities, and projected net product sales over the term of the agreement. These inputs are considered to be Level 3 inputs in the fair value hierarchy, as they involve significant unobservable inputs and judgment. Changes in these assumptions could have a material impact on the effective interest rate.

The following table shows the activity of the liability related to the sale of future royalties as of June 30, 2025:

Term loan facility

In June 2025, the Company entered into a senior secured term loan agreement with Royalty Pharma Development Funding, LLC, as a lender and Wilmington Trust, National Association, as administrative agent (the Loan Agreement). The Loan Agreement provides for up to $750.0 million in term loans, consisting ofthree tranches of $250.0 million each. The first tranche is required to be drawn in full by the Company within 45 days following receipt of FDA marketing approval for daraxonrasib for any indication related to metastatic PDAC, if such approval occurs on or before January 1, 2028, unless the Company has previously elected to terminate the Loan Agreement. The second and third tranches are optional and may be drawn in whole or in part upon achievement of specified commercial milestones prior to January 1, 2028.

The maturity date of the facility is the earlier of (i) six years after the funding of the first tranche of term loans and (ii) December 31, 2032. The term loans bear interest at a floating rate equal to the three-month term SOFR (subject to a SOFR floor of 3.5%) plus 5.75%, payable on a quarterly basis. The Company is required to pay an upfront fee equal to 2.0% of the applicable tranche of loans drawn on each funding date. There are no scheduled principal amortization payments prior to maturity.

The Loan Agreement permits voluntary prepayment in full at any time, and also requires mandatory prepayment in connection with a change of control. Prepayments made prior to the second anniversary of the applicable funding date for the applicable tranche of loans are subject to a make-whole premium equal to the foregone interest through the second anniversary, as well as a prepayment premium of 3.00%. Prepayments made on or after the second anniversary but before the third anniversary are subject to a 3.00% prepayment premium, and prepayments made on or after the third anniversary are subject to a 1.00% prepayment premium. No make-whole or prepayment premium is due if repayment occurs at maturity.

The Loan Agreement contains customary affirmative and negative covenants on the part of the Company but does not include any financial covenants.

The Loan Agreement provides an enumerated list of customary events of default whereby certain actions could be exercised against the Company (including, without limitation, (i) the acceleration of all amounts due under the Term Loan Facility; (ii) the application of default rate interest; (iii) the exercise of powers of attorney, voting proxies and other similar rights; (iv) the foreclosure and sale of property and assets and (v) other actions permitted to be taken by a secured creditor).

The term loans are secured by a lien on substantially all of the Company’s assets.

As of June 30, 2025, no amounts had been drawn under the Loan Agreement, and no liability was recorded.

Common stock

As of June 30, 2025 and December 31, 2024, the Company’s certificate of incorporation authorized the Company to issue 300,000,000 shares of common stock, at a par value of $0.0001 per share. Each share of common stock is entitled toone vote. The holders of common stock are also entitled to receive dividends whenever funds are legally available and when declared by the Board of Directors. As of June 30, 2025, no dividends had been declared to date.

The Company evaluated the pre-funded warrants issued in conjunction with the December 2024 underwritten public offering and concluded that they met the criteria to be classified as equity within additional paid-in-capital.

The Company has reserved shares of common stock for future issuance as follows:

Stock-based compensation

2020 Incentive Award Plan

In February 2020, the Company adopted the 2020 Equity Incentive Plan (the 2020 Plan). The 2020 Plan became effective on February 11, 2020. The 2020 Plan provides for a variety of stock-based compensation awards, including stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards, performance bonus awards, performance stock unit awards, dividend equivalents, or other stock or cash based awards. Under the 2020 Plan, the Company generally grants stock-based awards with service-based vesting conditions only. Options and restricted stock unit awards granted typically vest over afour-year period, but may be granted with different vesting terms.

Following the effectiveness of the 2020 Plan, the Company ceased making grants under the 2014 Equity Incentive Plan (the 2014 Plan). However, the 2014 Plan continues to govern the terms and conditions of the outstanding awards granted under it. Shares of common stock subject to awards granted under the 2014 Plan that are forfeited or lapse unexercised and which following the effective date of the 2020 Plan were not issued under the 2014 Plan are available for issuance under the 2020 Plan.

2020 Employee Stock Purchase Plan

In February 2020, the Company adopted the 2020 Employee Stock Purchase Plan (the ESPP). Under the ESPP, employees have the ability to purchase shares of the Company’s common stock through payroll deductions at a discount during a series of offering periods of 24 months, each comprised of four six-month purchase periods. The purchase price will be the lower of 85% of the closing trading price per share of the Company’s common stock on the first day of an offering period in which an employee is enrolled or 85% of the closing trading price per share on the purchase date, which will occur on the last trading day of each purchase period.

For the three and six months ended June 30, 2025, there were 159,984 shares of common stock purchased under the ESPP. As of June 30, 2025, a total of 5,794,632 shares of common stock were available for future issuance under the ESPP. As of June 30, 2025, there was $3.2 million of unrecognized compensation cost related to the ESPP.

Stock options

The following summarizes option activity under both the 2020 Plan and the 2014 Plan:

As of June 30, 2025, there was $178.5 million of unrecognized stock-based compensation expense related to unvested stock options that is expected to be recognized over a weighted-average period of 2.85 years.

Restricted stock units

Activity under the 2020 Plan with respect to the Company’s restricted stock units (RSUs) during thesix months ended June 30, 2025 was as follows:

The number of RSUs vested includes shares of common stock that the Company withheld to satisfy the minimum statutory tax withholding requirements. As of June 30, 2025, there was $127.0 million of total unrecognized compensation cost related to RSUs that is expected to be recognized over a weighted average period of 2.96 years.

Stock-based compensation expense

Total stock-based compensation expense related to stock options, RSUs and the ESPP by function was as follows:

Net loss per share attributable to common stockholders

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders:

The following outstanding potentially dilutive shares have been excluded from the calculation of diluted net loss per share for the periods presented due to their anti-dilutive effect:

Subsequent events

One Big Beautiful Bill Act

On July 4, 2025, the United States enacted into law new tax legislation, the “One Big Beautiful Bill Act” (the OBBBA). The OBBBA includes provisions modifying the corporate income tax code. As the legislation was not signed into law until the Company’s third quarter of 2025, the impacts are not included in its operating results for the three and six months ended June 30, 2025. The Company is currently assessing the potential impact of this legislation on its financial position, results of operations, and cash flows.

Lease agreement

In July 2025, the Company amended its Redwood City lease to lease an additional approximately 60,841 square feet of office, laboratory and research and development space located at 400 Saginaw Drive, Redwood City, California (the 400 Building). The Company will pay an initial annual base rent of approximately $3.9 million, which is subject to scheduled 3.5% annual increases, plus certain operating expenses. The Company has been provided a tenant improvement allowance of $4.1 million. The Company expects to take possession of the 400 Building in August 2025. The Company has the option to extend the lease for an additional ten years after the first anniversary of the lease commencement date of the 400 Building.